I hadn't thought about this stand for quite a while.I love this design. Looking forward to your finished product.
It is just going to be a stand where I can stack guitars in their cases.
The ceilings in my apartment are 8 feet high. I measured some cases today and the S/T types are consistent, 41" or 42" tall, and I have 10 of those. The others are a mixture of lengths and the two tallest are acoustic cases that are close to 47".
Instead of the round supports I'll just use 1" lumber with the bottom resting on the carpet and the other a flat shelf with a gap in the center for round-bottom cases. The upper shelf will be a little lower than center so the taller cases can fit on the top.
All my cases will not fit in 4' so I am imagining the stand sitting away from a side wall with a few cases standing next to it. On the other side I could put a guitar hanger like in the pic.
Kinda busy right now, not sure when I can start this project.